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yaroslaw [1]
3 years ago
13

Please help i will mark you as brainly

Mathematics
1 answer:
netineya [11]3 years ago
4 0

Answer:

3

Step-by-step explanation:

(x+4) ^ 1/3 = 7

We need to cube each side of the equation

(x+4) ^ 1/3 ^3= 7^3

x+4 = 343

Subtract 4 from each side

x+4-4 = 343-4

x = 339

The power raised on each side is 3

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what is the hourly median income for a female with a less than a highschool diploma if you assume a 40-hour work week?
kakasveta [241]

Answer:

I believe the answer would be 323/40=$8.07/hr

8 0
2 years ago
An automobile manufacturer sold 30,000 new cars, one to each of 30,000 customers, in a certain year. The manufacturer was intere
snow_lady [41]
A) In order to create a sampling plan, you need to follow the following 5 steps:
    1) Define the sample population: who are the customers you want to contact?
       The costumers who bought a new car on a certain year.
    2) Define the size of population: how many customers are you going to contact?
       Of the 30000 customers who bought a car, you want to contact 1000 customers.
    3) Define the contact options: how are you going to contact the customers?
       You have a list of names and addresses, therefore you can send a questionnaire via mail.
    4) Form a sampling frame: what is the time or contact frame to get in touch with your customers? 
       You will send the questionnaires and you will wait two months for the answer.
    5) Define the analysis method: is yours a qualitative or quantitative research?
     In your case, you want a quantitative research and therefore a probabilistic sampling.

B) The 32.5% probability refers to customers having issues with the power doors locks among the costumers who had problems, it does not consider the customers who did not have any problem or those who had problems after the first 5000 miles.

C) In order to find the probability of a power door lock problem if there have been problems within the first 5000 miles, we need to consider the whole sample:
P = 13 / 1000
   = 0.013

Therefore, 
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   = 390

Hence, the number of new cars sold that experienced a problem with the power door locks within the first 5000 miles will be 390.
         
4 0
3 years ago
Write the ratio 2/5 Over 3/5 <br> in simplest form.
ruslelena [56]
I think its 0.4 over 0.6
5 0
3 years ago
Read 2 more answers
PLz anwser will mark brain list (find the area)
eduard

Answer:

A = 24

Area for a triangle = 1/2 b * h

5 0
2 years ago
Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
Snezhnost [94]

Answer:

This is a geometric sequence with a common ratio of -4

Step-by-step explanation:

Take the second term and divide by the first term

-4/1 = -4

Take the third term and divide by the second term

16/-4 = -4

Take the fourth term and divide by the third

-64/16 = -4

This is a geometric sequence with a common ratio of -4

3 0
3 years ago
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